Compressor including terminal protection structure

Abstract

A compressor (10) includes a casing (20), a terminal (29) protruding from the casing, a first cover (70) covering the terminal, and a second cover (50) covering the first cover.

The invention claimed is: 
     
       1. A compressor comprising:
 a casing provided with a first cover support and a second cover support, the second cover support being spaced apart from the first cover support; 
 a terminal protruding from the casing; 
 a first cover covering the terminal, the first cover being attachable to and detachable from the first cover support; and 
 a second cover covering the first cover, the second cover being attachable to and detachable from the second cover support independently of the first cover. 
 
     
     
       2. The compressor according to  claim 1 , wherein
 the first cover includes resin, and the second cover includes metal. 
 
     
     
       3. The compressor according to  claim 1 , wherein
 the first cover has a first volume, 
 the second cover has a second volume larger than the first volume, and 
 a differential volume obtained by subtracting the first volume from the second volume is larger than the first volume. 
 
     
     
       4. The compressor according to  claim 1 , wherein
 a flame-extinguishing member is provided on an inner surface of the second cover. 
 
     
     
       5. The compressor according to  claim 1 , wherein
 the first cover includes a first opening side surface in which a first opening for passing a lead wire is formed, and 
 the second cover includes a second opening side surface in which a second opening for passing the lead wire is formed. 
 
     
     
       6. The compressor according to  claim 5 , wherein
 the second opening is provided with a seal material that restrains flow of air passing through the second opening. 
 
     
     
       7. The compressor according to  claim 5 , wherein
 the first opening side surface and the second opening side surface face each other. 
 
     
     
       8. The compressor according to  claim 5 , wherein
 the first opening has an area larger than an area of the second opening. 
 
     
     
       9. The compressor according to  claim 5 , wherein
 the first opening side surface and a surface of the second cover facing the first opening side surface are separated by 20 mm or more. 
 
     
     
       10. The compressor according to  claim 1 , wherein
 the second cover is fastened to the second cover support by a bolt. 
 
     
     
       11. The compressor according to  claim 1 , wherein
 the first cover is fastened to the first cover support by a bolt. 
 
     
     
       12. The compressor according to  claim 1 , wherein
 the first cover is fixed to the second cover. 
 
     
     
       13. The compressor according to  claim 12 , wherein
 the first cover is a sheet attached to the second cover. 
 
     
     
       14. The compressor according to  claim 12 , wherein
 the first cover is a paint applied to the second cover. 
 
     
     
       15. The compressor according to  claim 12 , wherein
 the casing is provided with a cover support, and 
 both the first cover and the second cover are fastened to the cover support by a common fastener. 
 
     
     
       16. The compressor according to  claim 15 , wherein
 the second cover is configured to be independently fastened to the cover support by a fastener. 
 
     
     
       17. The compressor according to  claim 1 , wherein
 the second cover support at least partially surrounds the first cover support. 
 
     
     
       18. The compressor according to  claim 1 , wherein
 the first cover support is a metal member welded to the casing, and 
 the second cover support is another metal member welded to the casing, the other metal member being separate from the metal member. 
 
     
     
       19. A compressor comprising:
 a casing; 
 a terminal protruding from the casing; 
 a first cover covering the terminal, the first cover including a first opening side surface in which a first opening for passing a lead wire is formed; and 
 a second cover covering the first cover, the second cover includes a second opening side surface in which a second opening for passing the lead wire is formed, 
 the first opening side surface and the second opening side surface being arranged so as not to face each other. 
 
     
     
       20. The compressor according to  claim 19 , wherein
 the first opening side surface and the second opening side surface are not parallel to each other. 
 
     
     
       21. The compressor according to  claim 19 , wherein
 the first opening side surface and the second opening side surface are arranged to face in directions that are non-parallel to each other or in directions that are opposite to each other. 
 
     
     
       22. A compressor comprising:
 a casing; 
 a terminal protruding from the casing; 
 a first cover covering the terminal, the first cover including a first opening side surface in which a first opening for passing a lead wire is formed, the first opening has a center separated from the casing by a first distance; and 
 a second cover covering the first cover, the second cover includes a second opening side surface in which a second opening for passing the lead wire is formed, the second opening has a center separated from the casing by a second distance, 
 the first distance being different from the second distance. 
 
     
     
       23. The compressor according to  claim 22 , wherein
 the first distance is larger than the second distance. 
 
     
     
       24. The compressor according to  claim 22 , wherein
 the first distance is larger than the second distance.